AC3 Export Options

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AC3 is a compressed audio format developed by Dolby Laboratories, often used in DVD production.
Accessed by: File > Save Other > Export Audio... then choosing AC3 Files (FFmpeg) from the Save as type dropdown menu.
AC3ExportOptions.png
Also accessed by: File > Save Other > Export Multiple...} then choosing AC3 Files (FFmpeg) from the Save as type dropdown menu. In this case the options dialog will appear in the center of the Export Multiple dialog.
Warning icon FFmpeg is not shipped with Audacity but you can download it and then export as AC3 by following these instructions.

AC3 Export Setup

  • Bit Rate: Choose a bit rate from 32 kbps to 640 kbps (defaults to 160 kbps). Larger bit rates give higher quality but produce larger files.